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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-03 18:24:21 -0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-03 18:24:21 -0400 |
commit | 178783622ce0fd629fad21b33b8f8f56b64c5e45 (patch) | |
tree | de3c5133acd86cca859bd24b49d79e2040eeb714 /arch/arm/common | |
parent | ca56a95eedcc95f8fea7b49c87565cd961d74fe2 (diff) |
ARM: dmabounce: fix map_single() error return value
When map_single() is unable to obtain a safe buffer, we must return
the dma_addr_t error value, which is ~0 rather than 0.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/common')
-rw-r--r-- | arch/arm/common/dmabounce.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index e5681636626f..841df7d21c2f 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c | |||
@@ -255,7 +255,7 @@ static inline dma_addr_t map_single(struct device *dev, void *ptr, size_t size, | |||
255 | if (buf == 0) { | 255 | if (buf == 0) { |
256 | dev_err(dev, "%s: unable to map unsafe buffer %p!\n", | 256 | dev_err(dev, "%s: unable to map unsafe buffer %p!\n", |
257 | __func__, ptr); | 257 | __func__, ptr); |
258 | return 0; | 258 | return ~0; |
259 | } | 259 | } |
260 | 260 | ||
261 | dev_dbg(dev, | 261 | dev_dbg(dev, |